Autorentext

Yunus Ballim is an Emeritus Professor in the School of Civil & Environmental Engineering at the University of the Witwatersrand, Johannesburg in South Africa. He spent six years in the construction industry and has been a Civil Engineering academic since 1989. He has served as Deputy Vice-Chancellor and Vice Principal at the University of the Witwatersrand and as the founding Vice-Chancellor of the Sol Plaatje University in Kimberley, South Africa. He is a Senior Member of RILEM and an Honorary Fellow of the South African Institution of Civil Engineering.

Klappentext

The focus of this book is to provide guidance on the prediction of time-temperature profiles in large concrete elements during the early stages of construction, with a view to minimising the likely damage that may occur to the concrete as a result of elevated temperatures caused by the heat of hydration of the cementitious materials. Early-age elevated temperatures in concrete elements create the potential for cracking of the structure as well as compromising the strength and durability of the concrete.

The book provides details on the characteristics of cementitious materials and their effects on the rate of heat evolution as well as the effects of elevated curing temperatures on the physical, mechanical and durability properties of concrete. The book also considers the effectiveness of materials selection and construction methodologies for early-age concrete temperature management and control. Several case studies are presented to illustrate the important aspects in the design and construction of temperature-sensitive concrete structures.

This book is primarily aimed at practicing design and construction engineers who are concerned with thermal effects and stresses in large concrete elements. It is also aimed at researchers and postgraduate students who may consider aspects of this wonderfully complex matter of heat transfer and temperature prediction in large concrete structures, as sufficiently interesting to warrant further research and investigation.

Inhalt

Introduction 1. Cement Hydration and Heat Evolution 2.Effects of Elevated Curing Temperatures on the Physical, Mechanical, and Durability Properties of Concrete 3. Modelling Temperature Development on Large Concrete Elements - a Finite-Difference Approach 4. Materials and Construction Methodologies for Early-Age Concrete Temperature Management and Control 5. Case Studies